Copper manifolds are available in five styles‚ with or without ball valves. The ends of the manifold trunks are either open‚ closed‚ or supplied with 3/4 in. crimp fittings. Manifolds are made of type "L" copper. All fittings are brass and are brazed to the copper trunk. Use with Copper Crimp Rings or Stainless Steel CinchClamps.